Compilare: main.cpp: In function 'int FindSet(int)': main.cpp:22:9: warning: unused variable 'cx' [-Wunused-variable] int cx=x, aux; ^~ main.cpp:22:15: warning: unused variable 'aux' [-Wunused-variable] int cx=x, aux; ^~~ main.cpp: In function 'int main()': main.cpp:75:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<muchii.size();i++) ~^~~~~~~~~~~~~~